The Ss Brewtech FTSs Heating and Chilling for Standard Chronical 7 Gallon Fermenter is the top of the line when it comes to controlling your beer's temperature thanks to its innovative design. It features a 2 way switchable controller and allows for both heating and cooling with one simple system. The chiller coil works in tandem with the FTSs to give full control over the cooling of your wort. Just set your desired temperature with the controller, provide a cold water source, attach the heating pad underneath the neoprene jacket, plug into the wall and you are good to go. The system with fully monitor and adjust the temperature based on your preset whether it gets cold or warm.